/*
 * @(#)CommandLineApp.java	1.0 Apr 26, 2008
 *
 *	The MIT License
 *
 *	Copyright (c) 2008 Malachi de AElfweald <malachid@gmail.com>
 *
 *	Permission is hereby granted, free of charge, to any person obtaining a copy
 *	of this software and associated documentation files (the "Software"), to deal
 *	in the Software without restriction, including without limitation the rights
 *	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *	copies of the Software, and to permit persons to whom the Software is
 *	furnished to do so, subject to the following conditions:
 *
 *	The above copyright notice and this permission notice shall be included in
 *	all copies or substantial portions of the Software.
 *
 *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *	THE SOFTWARE.
 */
package org.eoti.io.args4j;

import org.kohsuke.args4j.Argument;
import org.kohsuke.args4j.CmdLineParser;
import org.kohsuke.args4j.CmdLineException;
import org.kohsuke.args4j.ExampleMode;

import java.util.*;

public class CommandLineApp
{
	static{
		Args4jRegistry.install();
	}

	// receives whatever non-option arguments are passed
	@Argument
	protected List<String> arguments = new ArrayList<String>();

	public CommandLineApp(String ... args)
	{
//		for(String arg : args)
//			System.out.format("ARG: %s\n", arg);
		
		CmdLineParser cmdLineParser = new CmdLineParser(this);
		try{
			cmdLineParser.parseArgument(args);
			processArguments(arguments);
		} catch(CmdLineException e){
			System.err.format("Error: %s\n", e.getMessage());
			System.err.format("USAGE: java %s [options...] arguments...\n", this.getClass().getName());
			cmdLineParser.printUsage(System.err);
			System.err.println();
			printExample(cmdLineParser);
			System.exit(1);
		}
	}

	protected void printExample(CmdLineParser cmdLineParser)
	{
		System.err.format(
			"EXAMPLE: java %s %s\n",
			this.getClass().getName(),
			cmdLineParser.printExample(ExampleMode.ALL)
		);
	}

	protected void processArguments(List<String> arguments)
	throws CmdLineException
	{
		
	}
}
